From 0a293a75cad444ea51db77bd8909d2f6a43f7461 Mon Sep 17 00:00:00 2001 From: Stephen Celis Date: Mon, 19 Aug 2024 11:24:38 -0700 Subject: [PATCH] wip --- .../ModernUIKit.xcodeproj/project.pbxproj | 450 +++++++++++++++++ .../contents.xcworkspacedata | 7 + .../xcshareddata/IDEWorkspaceChecks.plist | 8 + 0290-cross-platform-pt1/ModernUIKit/App.swift | 15 + .../ModernUIKit/AppFeature.swift | 89 ++++ .../AccentColor.colorset/Contents.json | 11 + .../AppIcon.appiconset/Contents.json | 13 + .../ModernUIKit/Assets.xcassets/Contents.json | 6 + .../ModernUIKit/CounterFeatureEpoxy.swift | 232 +++++++++ .../ModernUIKit/CounterFeatureSwiftUI.swift | 36 ++ .../ModernUIKit/CounterFeatureUIKit.swift | 125 +++++ .../ModernUIKit/CounterModel.swift | 52 ++ .../ModernUIKit/Info.plist | 11 + .../Preview Assets.xcassets/Contents.json | 6 + .../ModernUIKit/SettingsFeature.swift | 71 +++ 0290-cross-platform-pt1/README.md | 5 + 0291-cross-platform-pt2/Counter/.gitignore | 8 + .../Counter/.swift-version | 1 + 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XCConfigurationList; + buildConfigurations = ( + 4B54C2432BFD0D1A00E95174 /* Debug */, + 4B54C2442BFD0D1A00E95174 /* Release */, + ); + defaultConfigurationIsVisible = 0; + defaultConfigurationName = Release; + }; + 4B54C2452BFD0D1A00E95174 /* Build configuration list for PBXNativeTarget "ModernUIKit" */ = { + isa = XCConfigurationList; + buildConfigurations = ( + 4B54C2462BFD0D1A00E95174 /* Debug */, + 4B54C2472BFD0D1A00E95174 /* Release */, + ); + defaultConfigurationIsVisible = 0; + defaultConfigurationName = Release; + }; +/* End XCConfigurationList section */ + +/* Begin XCRemoteSwiftPackageReference section */ + 2A154CEE2C5D56C7009FC7D9 /* XCRemoteSwiftPackageReference "epoxy-ios" */ = { + isa = XCRemoteSwiftPackageReference; + repositoryURL = "https://github.com/airbnb/epoxy-ios"; + requirement = { + kind = upToNextMajorVersion; + minimumVersion = 0.10.0; + }; + }; + 2A1CEB252BFD271600753A66 /* XCRemoteSwiftPackageReference "swift-perception" */ = { + isa = XCRemoteSwiftPackageReference; + repositoryURL = "https://github.com/pointfreeco/swift-perception"; + requirement = { + kind = upToNextMajorVersion; + minimumVersion = 1.1.7; + }; + }; + CA5C1D612C5932B500F8882D /* XCRemoteSwiftPackageReference "swift-navigation" */ = { + isa = XCRemoteSwiftPackageReference; + repositoryURL = "https://github.com/pointfreeco/swift-navigation.git"; + requirement = { + kind = upToNextMajorVersion; + minimumVersion = 2.0.0; + }; + }; +/* End XCRemoteSwiftPackageReference section */ + +/* Begin XCSwiftPackageProductDependency section */ + 2A154CEF2C5D56C7009FC7D9 /* Epoxy */ = { + isa = XCSwiftPackageProductDependency; + package = 2A154CEE2C5D56C7009FC7D9 /* XCRemoteSwiftPackageReference "epoxy-ios" */; + productName = Epoxy; + }; + 2A1CEB262BFD271600753A66 /* Perception */ = { + isa = XCSwiftPackageProductDependency; + package = 2A1CEB252BFD271600753A66 /* XCRemoteSwiftPackageReference "swift-perception" */; + productName = Perception; + }; + CA5C1D622C5932B500F8882D /* SwiftNavigation */ = { + isa = XCSwiftPackageProductDependency; + package = CA5C1D612C5932B500F8882D /* XCRemoteSwiftPackageReference "swift-navigation" */; + productName = SwiftNavigation; + }; + CA5C1D642C5932B500F8882D /* SwiftUINavigation */ = { + isa = XCSwiftPackageProductDependency; + package = CA5C1D612C5932B500F8882D /* XCRemoteSwiftPackageReference "swift-navigation" */; + productName = SwiftUINavigation; + }; + CA5C1D662C5932B500F8882D /* UIKitNavigation */ = { + isa = XCSwiftPackageProductDependency; + package = CA5C1D612C5932B500F8882D /* XCRemoteSwiftPackageReference "swift-navigation" */; + productName = UIKitNavigation; + }; +/* End XCSwiftPackageProductDependency section */ + }; + rootObject = 4B54C2192BFD0D1900E95174 /* Project object */; +} diff --git a/0290-cross-platform-pt1/ModernUIKit.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/0290-cross-platform-pt1/ModernUIKit.xcodeproj/project.xcworkspace/contents.xcworkspacedata new file mode 100644 index 00000000..919434a6 --- /dev/null +++ b/0290-cross-platform-pt1/ModernUIKit.xcodeproj/project.xcworkspace/contents.xcworkspacedata @@ -0,0 +1,7 @@ + + + + + diff --git a/0290-cross-platform-pt1/ModernUIKit.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/0290-cross-platform-pt1/ModernUIKit.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist new file mode 100644 index 00000000..18d98100 --- /dev/null +++ b/0290-cross-platform-pt1/ModernUIKit.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist @@ -0,0 +1,8 @@ + + + + + IDEDidComputeMac32BitWarning + + + diff --git a/0290-cross-platform-pt1/ModernUIKit/App.swift b/0290-cross-platform-pt1/ModernUIKit/App.swift new file mode 100644 index 00000000..200192cb --- /dev/null +++ b/0290-cross-platform-pt1/ModernUIKit/App.swift @@ -0,0 +1,15 @@ +import SwiftUI +import UIKitNavigation + +@main +struct ModernUIKitApp: App { + var body: some Scene { + WindowGroup { + UIViewControllerRepresenting { + NavigationStackController( + model: AppModel() + ) + } + } + } +} diff --git a/0290-cross-platform-pt1/ModernUIKit/AppFeature.swift b/0290-cross-platform-pt1/ModernUIKit/AppFeature.swift new file mode 100644 index 00000000..685ccb93 --- /dev/null +++ b/0290-cross-platform-pt1/ModernUIKit/AppFeature.swift @@ -0,0 +1,89 @@ +import Perception +import SwiftUI +import UIKitNavigation + +@Perceptible +class AppModel { + var path: [Path] + init(path: [Path] = []) { + self.path = path + } + + enum Path: Hashable { + case counter(CounterModel) + case settings(SettingsModel) + } +} + +struct AppView: View { + @Perception.Bindable var model: AppModel + + var body: some View { + WithPerceptionTracking { + NavigationStack(path: $model.path) { + Form { + Button("Counter") { + model.path.append(.counter(CounterModel())) + } + Button("Settings") { + model.path.append(.settings(SettingsModel())) + } + + NavigationLink("Counter w/ value", value: AppModel.Path.counter(CounterModel())) + } + .navigationDestination(for: AppModel.Path.self) { path in + switch path { + case let .counter(model): + CounterView(model: model) + case let .settings(model): + SettingsView(model: model) + } + } + } + } + } +} + +extension NavigationStackController { + convenience init(model: AppModel) { + @UIBindable var model = model + self.init(path: $model.path) { + RootViewController() + } + self.navigationDestination(for: AppModel.Path.self) { path in + switch path { + case let .counter(model): + CounterViewController(model: model) + case let .settings(model): + SettingsViewController(model: model) + } + } + } +} + +final class RootViewController: UIViewController { + override func viewDidLoad() { + super.viewDidLoad() + + let counterButton = UIButton(type: .system, primaryAction: UIAction { [weak self] _ in + self?.navigationController?.push(value: AppModel.Path.counter(CounterModel())) + }) + counterButton.setTitle("Counter", for: .normal) + let settingsButton = UIButton(type: .system, primaryAction: UIAction { [weak self] _ in + self?.navigationController?.push(value: AppModel.Path.settings(SettingsModel())) + }) + settingsButton.setTitle("Settings", for: .normal) + let stack = UIStackView(arrangedSubviews: [ + counterButton, + settingsButton, + ]) + stack.axis = .vertical + stack.translatesAutoresizingMaskIntoConstraints = false + view.addSubview(stack) + + NSLayoutConstraint.activate([ + stack.centerXAnchor.constraint(equalTo: view.centerXAnchor), + stack.centerYAnchor.constraint(equalTo: view.centerYAnchor), + ]) + } +} diff --git a/0290-cross-platform-pt1/ModernUIKit/Assets.xcassets/AccentColor.colorset/Contents.json b/0290-cross-platform-pt1/ModernUIKit/Assets.xcassets/AccentColor.colorset/Contents.json new file mode 100644 index 00000000..eb878970 --- /dev/null +++ b/0290-cross-platform-pt1/ModernUIKit/Assets.xcassets/AccentColor.colorset/Contents.json @@ -0,0 +1,11 @@ +{ + "colors" : [ + { + "idiom" : "universal" + } + ], + "info" : { + "author" : "xcode", + "version" : 1 + } +} diff --git a/0290-cross-platform-pt1/ModernUIKit/Assets.xcassets/AppIcon.appiconset/Contents.json b/0290-cross-platform-pt1/ModernUIKit/Assets.xcassets/AppIcon.appiconset/Contents.json new file mode 100644 index 00000000..13613e3e --- /dev/null +++ b/0290-cross-platform-pt1/ModernUIKit/Assets.xcassets/AppIcon.appiconset/Contents.json @@ -0,0 +1,13 @@ +{ + "images" : [ + { + "idiom" : "universal", + "platform" : "ios", + "size" : "1024x1024" + } + ], + "info" : { + "author" : "xcode", + "version" : 1 + } +} diff --git a/0290-cross-platform-pt1/ModernUIKit/Assets.xcassets/Contents.json b/0290-cross-platform-pt1/ModernUIKit/Assets.xcassets/Contents.json new file mode 100644 index 00000000..73c00596 --- /dev/null +++ b/0290-cross-platform-pt1/ModernUIKit/Assets.xcassets/Contents.json @@ -0,0 +1,6 @@ +{ + "info" : { + "author" : "xcode", + "version" : 1 + } +} diff --git a/0290-cross-platform-pt1/ModernUIKit/CounterFeatureEpoxy.swift b/0290-cross-platform-pt1/ModernUIKit/CounterFeatureEpoxy.swift new file mode 100644 index 00000000..02108c4f --- /dev/null +++ b/0290-cross-platform-pt1/ModernUIKit/CounterFeatureEpoxy.swift @@ -0,0 +1,232 @@ +import Epoxy +import UIKit +import UIKitNavigation + +class EpoxyCounterViewController: CollectionViewController { + @UIBindable var model: CounterModel + + init(model: CounterModel) { + self.model = model + super.init( + layout: UICollectionViewCompositionalLayout.list( + using: UICollectionLayoutListConfiguration( + appearance: .grouped + ) + ) + ) + } + + private enum DataID { + case activity + case count + case decrementButton + case fact + case factButton + case incrementButton + } + + override func viewDidLoad() { + super.viewDidLoad() + + observe { [weak self] in + guard let self else { return } + + setItems(items, animated: false) + } + + present(item: $model.fact) { fact in + let alert = UIAlertController( + title: "Fact", + message: fact.value, + preferredStyle: .alert + ) + alert.addAction(UIAlertAction(title: "OK", style: .default)) + return alert + } + } + + @ItemModelBuilder + private var items: [ItemModeling] { + Label.itemModel( + dataID: DataID.count, + content: "Count: \(model.count)", + style: .style(with: .title1) + ) + ButtonRow.itemModel( + dataID: DataID.decrementButton, + content: ButtonRow.Content(text: "Decrement"), + behaviors: ButtonRow.Behaviors( + didTap: { [weak self] in + self?.model.decrementButtonTapped() + } + ) + ) + ButtonRow.itemModel( + dataID: DataID.incrementButton, + content: ButtonRow.Content(text: "Increment"), + behaviors: ButtonRow.Behaviors( + didTap: { [weak self] in + self?.model.incrementButtonTapped() + } + ) + ) + ButtonRow.itemModel( + dataID: DataID.factButton, + content: ButtonRow.Content(text: "Get fact"), + behaviors: ButtonRow.Behaviors( + didTap: { [weak self] in + Task { + await self?.model.factButtonTapped() + } + } + ) + ) +// if let fact = model.fact { +// Label.itemModel( +// dataID: DataID.fact, +// content: fact.value, +// style: .style(with: .body) +// ) +// } else { + ActivityIndicatorView.itemModel( + dataID: DataID.activity, + content: model.factIsLoading, + style: .large + ) +// } + } +} + +final class ActivityIndicatorView: UIActivityIndicatorView, EpoxyableView { + func setContent(_ content: Bool, animated: Bool) { + if content { + startAnimating() + } else { + stopAnimating() + } + } +} + +final class Label: UILabel, @preconcurrency EpoxyableView { + + // MARK: Lifecycle + + init(style: Style) { + super.init(frame: .zero) + translatesAutoresizingMaskIntoConstraints = false + font = style.font + numberOfLines = style.numberOfLines + if style.showLabelBackground { + backgroundColor = .secondarySystemBackground + } + } + + required init?(coder _: NSCoder) { + fatalError("init(coder:) has not been implemented") + } + + struct Style: Hashable { + let font: UIFont + let showLabelBackground: Bool + var numberOfLines = 0 + } + + typealias Content = String + + func setContent(_ content: String, animated _: Bool) { + text = content + } +} + +extension Label.Style { + static func style( + with textStyle: UIFont.TextStyle, + showBackground: Bool = false + ) -> Label.Style { + .init( + font: UIFont.preferredFont(forTextStyle: textStyle), + showLabelBackground: showBackground + ) + } +} + +final class ButtonRow: UIView, @preconcurrency EpoxyableView { + + // MARK: Lifecycle + + init() { + super.init(frame: .zero) + setUp() + } + + required init?(coder _: NSCoder) { + fatalError("init(coder:) has not been implemented") + } + + // MARK: Internal + + struct Behaviors { + var didTap: (() -> Void)? + } + + struct Content: Equatable { + var text: String? + } + + func setContent(_ content: Content, animated _: Bool) { + text = content.text + } + + func setBehaviors(_ behaviors: Behaviors?) { + didTap = behaviors?.didTap + } + + // MARK: Private + + private let button = UIButton(type: .system) + private var didTap: (() -> Void)? + + private var text: String? { + get { button.title(for: .normal) } + set { button.setTitle(newValue, for: .normal) } + } + + private func setUp() { + translatesAutoresizingMaskIntoConstraints = false + layoutMargins = UIEdgeInsets(top: 20, left: 24, bottom: 20, right: 24) + backgroundColor = .quaternarySystemFill + + button.tintColor = .systemBlue + button.titleLabel?.font = UIFont.preferredFont(forTextStyle: .title3) + button.translatesAutoresizingMaskIntoConstraints = false + + addSubview(button) + NSLayoutConstraint.activate([ + button.leadingAnchor + .constraint(equalTo: layoutMarginsGuide.leadingAnchor), + button.topAnchor + .constraint(equalTo: layoutMarginsGuide.topAnchor), + button.trailingAnchor + .constraint(equalTo: layoutMarginsGuide.trailingAnchor), + button.bottomAnchor + .constraint(equalTo: layoutMarginsGuide.bottomAnchor), + ]) + + button.addTarget(self, action: #selector(handleTap), for: .touchUpInside) + } + + @objc + private func handleTap() { + didTap?() + } +} + +import SwiftUI +// #Preview +struct EpoxyCounterViewControllerPreview: PreviewProvider { + static var previews: some View { + UIViewControllerRepresenting { + EpoxyCounterViewController(model: CounterModel()) + } + } +} diff --git a/0290-cross-platform-pt1/ModernUIKit/CounterFeatureSwiftUI.swift b/0290-cross-platform-pt1/ModernUIKit/CounterFeatureSwiftUI.swift new file mode 100644 index 00000000..350d663d --- /dev/null +++ b/0290-cross-platform-pt1/ModernUIKit/CounterFeatureSwiftUI.swift @@ -0,0 +1,36 @@ +import Perception +import SwiftUI +import SwiftUINavigation + +struct CounterView: View { + @Perception.Bindable var model: CounterModel + var body: some View { + WithPerceptionTracking { + Form { + Stepper( + "\(model.count)", + value: $model.count + ) + if model.factIsLoading { + ProgressView().id(UUID()) + } + + Button("Get fact") { + Task { + await model.factButtonTapped() + } + } + } + .disabled(model.factIsLoading) + .sheet(item: $model.fact) { fact in + Text(fact.value) + } + } + } +} + +#Preview("SwiftUI") { + NavigationStack { + CounterView(model: CounterModel()) + } +} diff --git a/0290-cross-platform-pt1/ModernUIKit/CounterFeatureUIKit.swift b/0290-cross-platform-pt1/ModernUIKit/CounterFeatureUIKit.swift new file mode 100644 index 00000000..c6816f96 --- /dev/null +++ b/0290-cross-platform-pt1/ModernUIKit/CounterFeatureUIKit.swift @@ -0,0 +1,125 @@ +import UIKit +import UIKitNavigation +import SwiftUI + +final class CounterViewController: UIViewController { + @UIBindable var model: CounterModel + + init(model: CounterModel) { + self.model = model + super.init(nibName: nil, bundle: nil) + } + + required init?(coder: NSCoder) { + fatalError("init(coder:) has not been implemented") + } + + override func viewDidLoad() { + super.viewDidLoad() + view.backgroundColor = .systemBackground + + let countLabel = UILabel() + countLabel.textAlignment = .center + + let counter = UIStepper(frame: .zero, value: $model.count.toDouble) + + let textField = UITextField(frame: .zero, text: $model.text) + textField.bind(focus: $model.isTextFocused) + textField.placeholder = "Some text" + textField.borderStyle = .bezel + + let factLabel = UILabel() + factLabel.numberOfLines = 0 + let activityIndicator = UIActivityIndicatorView() + activityIndicator.startAnimating() + let factButton = UIButton(type: .system, primaryAction: UIAction { [weak self] _ in + guard let self else { return } + Task { await self.model.factButtonTapped() } + }) + factButton.setTitle("Get fact", for: .normal) + let resetButton = UIButton(type: .system, primaryAction: UIAction { [weak self] _ in + guard let self else { return } + model.count = 0 + }) + resetButton.setTitle("Reset", for: .normal) + + let counterStack = UIStackView(arrangedSubviews: [ + countLabel, + counter, + resetButton, + textField, + factLabel, + activityIndicator, + factButton, + ]) + counterStack.axis = .vertical + counterStack.spacing = 12 + counterStack.translatesAutoresizingMaskIntoConstraints = false + + view.addSubview(counterStack) + NSLayoutConstraint.activate([ + counterStack.centerXAnchor.constraint(equalTo: view.centerXAnchor), + counterStack.centerYAnchor.constraint(equalTo: view.centerYAnchor), + counterStack.leadingAnchor.constraint(equalTo: view.leadingAnchor), + counterStack.trailingAnchor.constraint(equalTo: view.trailingAnchor), + ]) + + observe { [weak self] in + guard let self else { return } + countLabel.text = "\(model.count)" + activityIndicator.isHidden = !model.factIsLoading + counter.isEnabled = !model.factIsLoading + factButton.isEnabled = !model.factIsLoading + } + + present(item: $model.fact) { fact in + FactViewController(fact: fact.value) + } + } +} + +extension Int { + fileprivate var toDouble: Double { + get { + Double(self) + } + set { + self = Int(newValue) + } + } +} + +class FactViewController: UIViewController { + let fact: String + init(fact: String) { + self.fact = fact + super.init(nibName: nil, bundle: nil) + } + required init?(coder: NSCoder) { + fatalError("init(coder:) has not been implemented") + } + override func viewDidLoad() { + super.viewDidLoad() + + view.backgroundColor = .white + let factLabel = UILabel() + factLabel.text = fact + factLabel.numberOfLines = 0 + factLabel.translatesAutoresizingMaskIntoConstraints = false + view.addSubview(factLabel) + NSLayoutConstraint.activate([ + factLabel.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor), + factLabel.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor), + factLabel.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor), + factLabel.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor), + ]) + } +} + +#Preview("UIKit") { + UIViewControllerRepresenting { + UINavigationController( + rootViewController: CounterViewController(model: CounterModel()) + ) + } +} diff --git a/0290-cross-platform-pt1/ModernUIKit/CounterModel.swift b/0290-cross-platform-pt1/ModernUIKit/CounterModel.swift new file mode 100644 index 00000000..6c360bf2 --- /dev/null +++ b/0290-cross-platform-pt1/ModernUIKit/CounterModel.swift @@ -0,0 +1,52 @@ +import Foundation +import Perception +import SwiftNavigation + +@MainActor +@Perceptible +class CounterModel: HashableObject { + var count = 0 { + didSet { + isTextFocused = !count.isMultiple(of: 3) + } + } + var fact: Fact? + var factIsLoading = false + var isTextFocused = false + var text = "" + + struct Fact: Identifiable { + var value: String + var id: String { value } + } + + func incrementButtonTapped() { + count += 1 + fact = nil + } + + func decrementButtonTapped() { + count -= 1 + fact = nil + } + + func factButtonTapped() async { + fact = nil + factIsLoading = true + defer { factIsLoading = false } + + do { + try await Task.sleep(for: .seconds(1)) + let loadedFact = try await String( + decoding: URLSession.shared + .data( + from: URL(string: "http://www.numberapi.com/\(count)")! + ).0, + as: UTF8.self + ) + fact = Fact(value: loadedFact) + } catch { + // TODO: error handling + } + } +} diff --git a/0290-cross-platform-pt1/ModernUIKit/Info.plist b/0290-cross-platform-pt1/ModernUIKit/Info.plist new file mode 100644 index 00000000..6a6654d9 --- /dev/null +++ b/0290-cross-platform-pt1/ModernUIKit/Info.plist @@ -0,0 +1,11 @@ + + + + + NSAppTransportSecurity + + NSAllowsArbitraryLoads + + + + diff --git a/0290-cross-platform-pt1/ModernUIKit/Preview Content/Preview Assets.xcassets/Contents.json b/0290-cross-platform-pt1/ModernUIKit/Preview Content/Preview Assets.xcassets/Contents.json new file mode 100644 index 00000000..73c00596 --- /dev/null +++ b/0290-cross-platform-pt1/ModernUIKit/Preview Content/Preview Assets.xcassets/Contents.json @@ -0,0 +1,6 @@ +{ + "info" : { + "author" : "xcode", + "version" : 1 + } +} diff --git a/0290-cross-platform-pt1/ModernUIKit/SettingsFeature.swift b/0290-cross-platform-pt1/ModernUIKit/SettingsFeature.swift new file mode 100644 index 00000000..05898d4d --- /dev/null +++ b/0290-cross-platform-pt1/ModernUIKit/SettingsFeature.swift @@ -0,0 +1,71 @@ +import Perception +import SwiftUI +import SwiftUINavigation + +@MainActor +@Perceptible +class SettingsModel: HashableObject { + var isOn = false +} + +struct SettingsView: View { + @Perception.Bindable var model: SettingsModel + + var body: some View { + WithPerceptionTracking { + Form { + Toggle(isOn: $model.isOn) { + Text("Is on?") + } + } + } + } +} + +class SettingsViewController: UIViewController { + let model: SettingsModel + + init(model: SettingsModel) { + self.model = model + super.init(nibName: nil, bundle: nil) + } + required init?(coder: NSCoder) { + fatalError("init(coder:) has not been implemented") + } + + override func viewDidLoad() { + super.viewDidLoad() + view.backgroundColor = .systemBackground + + let isOnSwitch = UISwitch() + isOnSwitch.addAction( + UIAction { [weak model = self.model, weak isOnSwitch] _ in + guard let model, let isOnSwitch + else { return } + model.isOn = isOnSwitch.isOn + }, + for: .valueChanged + ) + isOnSwitch.translatesAutoresizingMaskIntoConstraints = false + view.addSubview(isOnSwitch) + + NSLayoutConstraint.activate([ + isOnSwitch.centerXAnchor.constraint(equalTo: view.centerXAnchor), + isOnSwitch.centerYAnchor.constraint(equalTo: view.centerYAnchor), + ]) + + observe { [weak self] in + guard let self else { return } + isOnSwitch.setOn(model.isOn, animated: true) + } + } +} + +#Preview("SwiftUI") { + SettingsView(model: SettingsModel()) +} +#Preview("UIKit") { + UIViewControllerRepresenting { + SettingsViewController(model: SettingsModel()) + } +} diff --git a/0290-cross-platform-pt1/README.md b/0290-cross-platform-pt1/README.md new file mode 100644 index 00000000..c81e8c36 --- /dev/null +++ b/0290-cross-platform-pt1/README.md @@ -0,0 +1,5 @@ +## [Point-Free](https://www.pointfree.co) + +> #### This directory contains code from Point-Free Episode: [Cross-Platform Swift: View Paradigms](https://www.pointfree.co/episodes/ep290-cross-platform-swift-view-paradigms) +> +> It’s time to go cross-platform! We will take a feature written in Swift and use it in vastly different situations, including not only SwiftUI and UIKit, but beyond Apple’s frameworks and ecosystems. We will start with a baby step and introduce our feature to a third party view paradigm, Airbnb’s Epoxy. diff --git a/0291-cross-platform-pt2/Counter/.gitignore b/0291-cross-platform-pt2/Counter/.gitignore new file mode 100644 index 00000000..0023a534 --- /dev/null +++ b/0291-cross-platform-pt2/Counter/.gitignore @@ -0,0 +1,8 @@ +.DS_Store +/.build +/Packages +xcuserdata/ +DerivedData/ +.swiftpm/configuration/registries.json +.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata +.netrc diff --git a/0291-cross-platform-pt2/Counter/.swift-version b/0291-cross-platform-pt2/Counter/.swift-version new file mode 100644 index 00000000..2304abaf --- /dev/null +++ b/0291-cross-platform-pt2/Counter/.swift-version @@ -0,0 +1 @@ +wasm-DEVELOPMENT-SNAPSHOT-2024-07-16-a diff --git a/0291-cross-platform-pt2/Counter/Package.swift b/0291-cross-platform-pt2/Counter/Package.swift new file mode 100644 index 00000000..ff81dc0e --- /dev/null +++ b/0291-cross-platform-pt2/Counter/Package.swift @@ -0,0 +1,39 @@ +// swift-tools-version: 6.0 + +import PackageDescription + +let package = Package( + name: "Counter", + platforms: [.iOS(.v16), .macOS(.v14)], + products: [ + .library( + name: "Counter", + targets: ["Counter"] + ), + ], + dependencies: [ + .package(url: "https://github.com/pointfreeco/swift-navigation", from: "2.0.0"), + .package(url: "https://github.com/pointfreeco/swift-perception", from: "1.0.0"), + .package(url: "https://github.com/swiftwasm/carton", from: "1.0.0"), + .package(url: "https://github.com/swiftwasm/JavaScriptKit", exact: "0.19.2"), + ], + targets: [ + .executableTarget( + name: "WasmApp", + dependencies: [ + "Counter", + .product(name: "SwiftNavigation", package: "swift-navigation"), + .product(name: "JavaScriptEventLoop", package: "JavaScriptKit"), + .product(name: "JavaScriptKit", package: "JavaScriptKit"), + ] + ), + .target( + name: "Counter", + dependencies: [ + .product(name: "SwiftNavigation", package: "swift-navigation"), + .product(name: "Perception", package: "swift-perception") + ] + ), + ], + swiftLanguageVersions: [.v6] +) diff --git a/0291-cross-platform-pt2/Counter/Sources/Counter/CounterModel.swift b/0291-cross-platform-pt2/Counter/Sources/Counter/CounterModel.swift new file mode 100644 index 00000000..fde2392d --- /dev/null +++ b/0291-cross-platform-pt2/Counter/Sources/Counter/CounterModel.swift @@ -0,0 +1,54 @@ +import Foundation +import Perception +import SwiftNavigation + +@MainActor +@Perceptible +public class CounterModel: HashableObject { + public var count = 0 { + didSet { + isTextFocused = !count.isMultiple(of: 3) + } + } + public var fact: Fact? + public var factIsLoading = false + public var isTextFocused = false + public var text = "" + + public struct Fact: Identifiable { + public var value: String + public var id: String { value } + } + + public init() {} + + public func incrementButtonTapped() { + count += 1 + fact = nil + } + + public func decrementButtonTapped() { + count -= 1 + fact = nil + } + + public func factButtonTapped() async { + fact = nil + factIsLoading = true + defer { factIsLoading = false } + + do { + try await Task.sleep(for: .seconds(1)) +// let loadedFact = try await String( +// decoding: URLSession.shared +// .data( +// from: URL(string: "http://www.numberapi.com/\(count)")! +// ).0, +// as: UTF8.self +// ) +// fact = Fact(value: loadedFact) + } catch { + // TODO: error handling + } + } +} diff --git a/0291-cross-platform-pt2/Counter/Sources/WasmApp/App.swift b/0291-cross-platform-pt2/Counter/Sources/WasmApp/App.swift new file mode 100644 index 00000000..7296bdbb --- /dev/null +++ b/0291-cross-platform-pt2/Counter/Sources/WasmApp/App.swift @@ -0,0 +1,46 @@ +import Counter +import JavaScriptEventLoop +import JavaScriptKit +import SwiftNavigation + +@main +@MainActor +struct App { + static var tokens: Set = [] + + static func main() { + JavaScriptEventLoop.installGlobalExecutor() + + let model = CounterModel() + + let document = JSObject.global.document + + var countLabel = document.createElement("span") + _ = document.body.appendChild(countLabel) + + var decrementButton = document.createElement("button") + decrementButton.innerText = "-" + decrementButton.onclick = .object( + JSClosure { _ in + model.decrementButtonTapped() + return .undefined + } + ) + _ = document.body.appendChild(decrementButton) + + var incrementButton = document.createElement("button") + incrementButton.innerText = "+" + incrementButton.onclick = .object( + JSClosure { _ in + model.incrementButtonTapped() + return .undefined + } + ) + _ = document.body.appendChild(incrementButton) + + observe { + countLabel.innerText = .string("Count: \(model.count)") + } + .store(in: &tokens) + } +} diff --git a/0291-cross-platform-pt2/ModernUIKit.xcodeproj/project.pbxproj b/0291-cross-platform-pt2/ModernUIKit.xcodeproj/project.pbxproj new file mode 100644 index 00000000..750b1e19 --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit.xcodeproj/project.pbxproj @@ -0,0 +1,454 @@ +// 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Debug */, + 4B54C2442BFD0D1A00E95174 /* Release */, + ); + defaultConfigurationIsVisible = 0; + defaultConfigurationName = Release; + }; + 4B54C2452BFD0D1A00E95174 /* Build configuration list for PBXNativeTarget "ModernUIKit" */ = { + isa = XCConfigurationList; + buildConfigurations = ( + 4B54C2462BFD0D1A00E95174 /* Debug */, + 4B54C2472BFD0D1A00E95174 /* Release */, + ); + defaultConfigurationIsVisible = 0; + defaultConfigurationName = Release; + }; +/* End XCConfigurationList section */ + +/* Begin XCRemoteSwiftPackageReference section */ + 2A154CEE2C5D56C7009FC7D9 /* XCRemoteSwiftPackageReference "epoxy-ios" */ = { + isa = XCRemoteSwiftPackageReference; + repositoryURL = "https://github.com/airbnb/epoxy-ios"; + requirement = { + kind = upToNextMajorVersion; + minimumVersion = 0.10.0; + }; + }; + 2A1CEB252BFD271600753A66 /* XCRemoteSwiftPackageReference "swift-perception" */ = { + isa = XCRemoteSwiftPackageReference; + repositoryURL = "https://github.com/pointfreeco/swift-perception"; + requirement = { + kind = upToNextMajorVersion; + minimumVersion = 1.1.7; + }; + }; + CA5C1D612C5932B500F8882D /* XCRemoteSwiftPackageReference "swift-navigation" */ = { + isa = XCRemoteSwiftPackageReference; + repositoryURL = "https://github.com/pointfreeco/swift-navigation.git"; + requirement = { + kind = upToNextMajorVersion; + minimumVersion = 2.0.0; + }; + }; +/* End XCRemoteSwiftPackageReference section */ + +/* Begin XCSwiftPackageProductDependency section */ + 2A154CEF2C5D56C7009FC7D9 /* Epoxy */ = { + isa = XCSwiftPackageProductDependency; + package = 2A154CEE2C5D56C7009FC7D9 /* XCRemoteSwiftPackageReference "epoxy-ios" */; + productName = Epoxy; + }; + 2A1CEB262BFD271600753A66 /* Perception */ = { + isa = XCSwiftPackageProductDependency; + package = 2A1CEB252BFD271600753A66 /* XCRemoteSwiftPackageReference "swift-perception" */; + productName = Perception; + }; + CA5C1D622C5932B500F8882D /* SwiftNavigation */ = { + isa = XCSwiftPackageProductDependency; + package = CA5C1D612C5932B500F8882D /* XCRemoteSwiftPackageReference "swift-navigation" */; + productName = SwiftNavigation; + }; + CA5C1D642C5932B500F8882D /* SwiftUINavigation */ = { + isa = XCSwiftPackageProductDependency; + package = CA5C1D612C5932B500F8882D /* XCRemoteSwiftPackageReference "swift-navigation" */; + productName = SwiftUINavigation; + }; + CA5C1D662C5932B500F8882D /* UIKitNavigation */ = { + isa = XCSwiftPackageProductDependency; + package = CA5C1D612C5932B500F8882D /* XCRemoteSwiftPackageReference "swift-navigation" */; + productName = UIKitNavigation; + }; +/* End XCSwiftPackageProductDependency section */ + }; + rootObject = 4B54C2192BFD0D1900E95174 /* Project object */; +} diff --git a/0291-cross-platform-pt2/ModernUIKit.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/0291-cross-platform-pt2/ModernUIKit.xcodeproj/project.xcworkspace/contents.xcworkspacedata new file mode 100644 index 00000000..919434a6 --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit.xcodeproj/project.xcworkspace/contents.xcworkspacedata @@ -0,0 +1,7 @@ + + + + + diff --git a/0291-cross-platform-pt2/ModernUIKit.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/0291-cross-platform-pt2/ModernUIKit.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist new file mode 100644 index 00000000..18d98100 --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist @@ -0,0 +1,8 @@ + + + + + IDEDidComputeMac32BitWarning + + + diff --git a/0291-cross-platform-pt2/ModernUIKit/.swift-version b/0291-cross-platform-pt2/ModernUIKit/.swift-version new file mode 100644 index 00000000..2304abaf --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit/.swift-version @@ -0,0 +1 @@ +wasm-DEVELOPMENT-SNAPSHOT-2024-07-16-a diff --git a/0291-cross-platform-pt2/ModernUIKit/App.swift b/0291-cross-platform-pt2/ModernUIKit/App.swift new file mode 100644 index 00000000..200192cb --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit/App.swift @@ -0,0 +1,15 @@ +import SwiftUI +import UIKitNavigation + +@main +struct ModernUIKitApp: App { + var body: some Scene { + WindowGroup { + UIViewControllerRepresenting { + NavigationStackController( + model: AppModel() + ) + } + } + } +} diff --git a/0291-cross-platform-pt2/ModernUIKit/AppFeature.swift b/0291-cross-platform-pt2/ModernUIKit/AppFeature.swift new file mode 100644 index 00000000..685ccb93 --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit/AppFeature.swift @@ -0,0 +1,89 @@ +import Perception +import SwiftUI +import UIKitNavigation + +@Perceptible +class AppModel { + var path: [Path] + init(path: [Path] = []) { + self.path = path + } + + enum Path: Hashable { + case counter(CounterModel) + case settings(SettingsModel) + } +} + +struct AppView: View { + @Perception.Bindable var model: AppModel + + var body: some View { + WithPerceptionTracking { + NavigationStack(path: $model.path) { + Form { + Button("Counter") { + model.path.append(.counter(CounterModel())) + } + Button("Settings") { + model.path.append(.settings(SettingsModel())) + } + + NavigationLink("Counter w/ value", value: AppModel.Path.counter(CounterModel())) + } + .navigationDestination(for: AppModel.Path.self) { path in + switch path { + case let .counter(model): + CounterView(model: model) + case let .settings(model): + SettingsView(model: model) + } + } + } + } + } +} + +extension NavigationStackController { + convenience init(model: AppModel) { + @UIBindable var model = model + self.init(path: $model.path) { + RootViewController() + } + self.navigationDestination(for: AppModel.Path.self) { path in + switch path { + case let .counter(model): + CounterViewController(model: model) + case let .settings(model): + SettingsViewController(model: model) + } + } + } +} + +final class RootViewController: UIViewController { + override func viewDidLoad() { + super.viewDidLoad() + + let counterButton = UIButton(type: .system, primaryAction: UIAction { [weak self] _ in + self?.navigationController?.push(value: AppModel.Path.counter(CounterModel())) + }) + counterButton.setTitle("Counter", for: .normal) + let settingsButton = UIButton(type: .system, primaryAction: UIAction { [weak self] _ in + self?.navigationController?.push(value: AppModel.Path.settings(SettingsModel())) + }) + settingsButton.setTitle("Settings", for: .normal) + let stack = UIStackView(arrangedSubviews: [ + counterButton, + settingsButton, + ]) + stack.axis = .vertical + stack.translatesAutoresizingMaskIntoConstraints = false + view.addSubview(stack) + + NSLayoutConstraint.activate([ + stack.centerXAnchor.constraint(equalTo: view.centerXAnchor), + stack.centerYAnchor.constraint(equalTo: view.centerYAnchor), + ]) + } +} diff --git a/0291-cross-platform-pt2/ModernUIKit/Assets.xcassets/AccentColor.colorset/Contents.json b/0291-cross-platform-pt2/ModernUIKit/Assets.xcassets/AccentColor.colorset/Contents.json new file mode 100644 index 00000000..eb878970 --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit/Assets.xcassets/AccentColor.colorset/Contents.json @@ -0,0 +1,11 @@ +{ + "colors" : [ + { + "idiom" : "universal" + } + ], + "info" : { + "author" : "xcode", + "version" : 1 + } +} diff --git a/0291-cross-platform-pt2/ModernUIKit/Assets.xcassets/AppIcon.appiconset/Contents.json b/0291-cross-platform-pt2/ModernUIKit/Assets.xcassets/AppIcon.appiconset/Contents.json new file mode 100644 index 00000000..13613e3e --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit/Assets.xcassets/AppIcon.appiconset/Contents.json @@ -0,0 +1,13 @@ +{ + "images" : [ + { + "idiom" : "universal", + "platform" : "ios", + "size" : "1024x1024" + } + ], + "info" : { + "author" : "xcode", + "version" : 1 + } +} diff --git a/0291-cross-platform-pt2/ModernUIKit/Assets.xcassets/Contents.json b/0291-cross-platform-pt2/ModernUIKit/Assets.xcassets/Contents.json new file mode 100644 index 00000000..73c00596 --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit/Assets.xcassets/Contents.json @@ -0,0 +1,6 @@ +{ + "info" : { + "author" : "xcode", + "version" : 1 + } +} diff --git a/0291-cross-platform-pt2/ModernUIKit/CounterFeatureEpoxy.swift b/0291-cross-platform-pt2/ModernUIKit/CounterFeatureEpoxy.swift new file mode 100644 index 00000000..02108c4f --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit/CounterFeatureEpoxy.swift @@ -0,0 +1,232 @@ +import Epoxy +import UIKit +import UIKitNavigation + +class EpoxyCounterViewController: CollectionViewController { + @UIBindable var model: CounterModel + + init(model: CounterModel) { + self.model = model + super.init( + layout: UICollectionViewCompositionalLayout.list( + using: UICollectionLayoutListConfiguration( + appearance: .grouped + ) + ) + ) + } + + private enum DataID { + case activity + case count + case decrementButton + case fact + case factButton + case incrementButton + } + + override func viewDidLoad() { + super.viewDidLoad() + + observe { [weak self] in + guard let self else { return } + + setItems(items, animated: false) + } + + present(item: $model.fact) { fact in + let alert = UIAlertController( + title: "Fact", + message: fact.value, + preferredStyle: .alert + ) + alert.addAction(UIAlertAction(title: "OK", style: .default)) + return alert + } + } + + @ItemModelBuilder + private var items: [ItemModeling] { + Label.itemModel( + dataID: DataID.count, + content: "Count: \(model.count)", + style: .style(with: .title1) + ) + ButtonRow.itemModel( + dataID: DataID.decrementButton, + content: ButtonRow.Content(text: "Decrement"), + behaviors: ButtonRow.Behaviors( + didTap: { [weak self] in + self?.model.decrementButtonTapped() + } + ) + ) + ButtonRow.itemModel( + dataID: DataID.incrementButton, + content: ButtonRow.Content(text: "Increment"), + behaviors: ButtonRow.Behaviors( + didTap: { [weak self] in + self?.model.incrementButtonTapped() + } + ) + ) + ButtonRow.itemModel( + dataID: DataID.factButton, + content: ButtonRow.Content(text: "Get fact"), + behaviors: ButtonRow.Behaviors( + didTap: { [weak self] in + Task { + await self?.model.factButtonTapped() + } + } + ) + ) +// if let fact = model.fact { +// Label.itemModel( +// dataID: DataID.fact, +// content: fact.value, +// style: .style(with: .body) +// ) +// } else { + ActivityIndicatorView.itemModel( + dataID: DataID.activity, + content: model.factIsLoading, + style: .large + ) +// } + } +} + +final class ActivityIndicatorView: UIActivityIndicatorView, EpoxyableView { + func setContent(_ content: Bool, animated: Bool) { + if content { + startAnimating() + } else { + stopAnimating() + } + } +} + +final class Label: UILabel, @preconcurrency EpoxyableView { + + // MARK: Lifecycle + + init(style: Style) { + super.init(frame: .zero) + translatesAutoresizingMaskIntoConstraints = false + font = style.font + numberOfLines = style.numberOfLines + if style.showLabelBackground { + backgroundColor = .secondarySystemBackground + } + } + + required init?(coder _: NSCoder) { + fatalError("init(coder:) has not been implemented") + } + + struct Style: Hashable { + let font: UIFont + let showLabelBackground: Bool + var numberOfLines = 0 + } + + typealias Content = String + + func setContent(_ content: String, animated _: Bool) { + text = content + } +} + +extension Label.Style { + static func style( + with textStyle: UIFont.TextStyle, + showBackground: Bool = false + ) -> Label.Style { + .init( + font: UIFont.preferredFont(forTextStyle: textStyle), + showLabelBackground: showBackground + ) + } +} + +final class ButtonRow: UIView, @preconcurrency EpoxyableView { + + // MARK: Lifecycle + + init() { + super.init(frame: .zero) + setUp() + } + + required init?(coder _: NSCoder) { + fatalError("init(coder:) has not been implemented") + } + + // MARK: Internal + + struct Behaviors { + var didTap: (() -> Void)? + } + + struct Content: Equatable { + var text: String? + } + + func setContent(_ content: Content, animated _: Bool) { + text = content.text + } + + func setBehaviors(_ behaviors: Behaviors?) { + didTap = behaviors?.didTap + } + + // MARK: Private + + private let button = UIButton(type: .system) + private var didTap: (() -> Void)? + + private var text: String? { + get { button.title(for: .normal) } + set { button.setTitle(newValue, for: .normal) } + } + + private func setUp() { + translatesAutoresizingMaskIntoConstraints = false + layoutMargins = UIEdgeInsets(top: 20, left: 24, bottom: 20, right: 24) + backgroundColor = .quaternarySystemFill + + button.tintColor = .systemBlue + button.titleLabel?.font = UIFont.preferredFont(forTextStyle: .title3) + button.translatesAutoresizingMaskIntoConstraints = false + + addSubview(button) + NSLayoutConstraint.activate([ + button.leadingAnchor + .constraint(equalTo: layoutMarginsGuide.leadingAnchor), + button.topAnchor + .constraint(equalTo: layoutMarginsGuide.topAnchor), + button.trailingAnchor + .constraint(equalTo: layoutMarginsGuide.trailingAnchor), + button.bottomAnchor + .constraint(equalTo: layoutMarginsGuide.bottomAnchor), + ]) + + button.addTarget(self, action: #selector(handleTap), for: .touchUpInside) + } + + @objc + private func handleTap() { + didTap?() + } +} + +import SwiftUI +// #Preview +struct EpoxyCounterViewControllerPreview: PreviewProvider { + static var previews: some View { + UIViewControllerRepresenting { + EpoxyCounterViewController(model: CounterModel()) + } + } +} diff --git a/0291-cross-platform-pt2/ModernUIKit/CounterFeatureSwiftUI.swift b/0291-cross-platform-pt2/ModernUIKit/CounterFeatureSwiftUI.swift new file mode 100644 index 00000000..350d663d --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit/CounterFeatureSwiftUI.swift @@ -0,0 +1,36 @@ +import Perception +import SwiftUI +import SwiftUINavigation + +struct CounterView: View { + @Perception.Bindable var model: CounterModel + var body: some View { + WithPerceptionTracking { + Form { + Stepper( + "\(model.count)", + value: $model.count + ) + if model.factIsLoading { + ProgressView().id(UUID()) + } + + Button("Get fact") { + Task { + await model.factButtonTapped() + } + } + } + .disabled(model.factIsLoading) + .sheet(item: $model.fact) { fact in + Text(fact.value) + } + } + } +} + +#Preview("SwiftUI") { + NavigationStack { + CounterView(model: CounterModel()) + } +} diff --git a/0291-cross-platform-pt2/ModernUIKit/CounterFeatureUIKit.swift b/0291-cross-platform-pt2/ModernUIKit/CounterFeatureUIKit.swift new file mode 100644 index 00000000..c6816f96 --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit/CounterFeatureUIKit.swift @@ -0,0 +1,125 @@ +import UIKit +import UIKitNavigation +import SwiftUI + +final class CounterViewController: UIViewController { + @UIBindable var model: CounterModel + + init(model: CounterModel) { + self.model = model + super.init(nibName: nil, bundle: nil) + } + + required init?(coder: NSCoder) { + fatalError("init(coder:) has not been implemented") + } + + override func viewDidLoad() { + super.viewDidLoad() + view.backgroundColor = .systemBackground + + let countLabel = UILabel() + countLabel.textAlignment = .center + + let counter = UIStepper(frame: .zero, value: $model.count.toDouble) + + let textField = UITextField(frame: .zero, text: $model.text) + textField.bind(focus: $model.isTextFocused) + textField.placeholder = "Some text" + textField.borderStyle = .bezel + + let factLabel = UILabel() + factLabel.numberOfLines = 0 + let activityIndicator = UIActivityIndicatorView() + activityIndicator.startAnimating() + let factButton = UIButton(type: .system, primaryAction: UIAction { [weak self] _ in + guard let self else { return } + Task { await self.model.factButtonTapped() } + }) + factButton.setTitle("Get fact", for: .normal) + let resetButton = UIButton(type: .system, primaryAction: UIAction { [weak self] _ in + guard let self else { return } + model.count = 0 + }) + resetButton.setTitle("Reset", for: .normal) + + let counterStack = UIStackView(arrangedSubviews: [ + countLabel, + counter, + resetButton, + textField, + factLabel, + activityIndicator, + factButton, + ]) + counterStack.axis = .vertical + counterStack.spacing = 12 + counterStack.translatesAutoresizingMaskIntoConstraints = false + + view.addSubview(counterStack) + NSLayoutConstraint.activate([ + counterStack.centerXAnchor.constraint(equalTo: view.centerXAnchor), + counterStack.centerYAnchor.constraint(equalTo: view.centerYAnchor), + counterStack.leadingAnchor.constraint(equalTo: view.leadingAnchor), + counterStack.trailingAnchor.constraint(equalTo: view.trailingAnchor), + ]) + + observe { [weak self] in + guard let self else { return } + countLabel.text = "\(model.count)" + activityIndicator.isHidden = !model.factIsLoading + counter.isEnabled = !model.factIsLoading + factButton.isEnabled = !model.factIsLoading + } + + present(item: $model.fact) { fact in + FactViewController(fact: fact.value) + } + } +} + +extension Int { + fileprivate var toDouble: Double { + get { + Double(self) + } + set { + self = Int(newValue) + } + } +} + +class FactViewController: UIViewController { + let fact: String + init(fact: String) { + self.fact = fact + super.init(nibName: nil, bundle: nil) + } + required init?(coder: NSCoder) { + fatalError("init(coder:) has not been implemented") + } + override func viewDidLoad() { + super.viewDidLoad() + + view.backgroundColor = .white + let factLabel = UILabel() + factLabel.text = fact + factLabel.numberOfLines = 0 + factLabel.translatesAutoresizingMaskIntoConstraints = false + view.addSubview(factLabel) + NSLayoutConstraint.activate([ + factLabel.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor), + factLabel.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor), + factLabel.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor), + factLabel.trailingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.trailingAnchor), + ]) + } +} + +#Preview("UIKit") { + UIViewControllerRepresenting { + UINavigationController( + rootViewController: CounterViewController(model: CounterModel()) + ) + } +} diff --git a/0291-cross-platform-pt2/ModernUIKit/Info.plist b/0291-cross-platform-pt2/ModernUIKit/Info.plist new file mode 100644 index 00000000..6a6654d9 --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit/Info.plist @@ -0,0 +1,11 @@ + + + + + NSAppTransportSecurity + + NSAllowsArbitraryLoads + + + + diff --git a/0291-cross-platform-pt2/ModernUIKit/Preview Content/Preview Assets.xcassets/Contents.json b/0291-cross-platform-pt2/ModernUIKit/Preview Content/Preview Assets.xcassets/Contents.json new file mode 100644 index 00000000..73c00596 --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit/Preview Content/Preview Assets.xcassets/Contents.json @@ -0,0 +1,6 @@ +{ + "info" : { + "author" : "xcode", + "version" : 1 + } +} diff --git a/0291-cross-platform-pt2/ModernUIKit/SettingsFeature.swift b/0291-cross-platform-pt2/ModernUIKit/SettingsFeature.swift new file mode 100644 index 00000000..05898d4d --- /dev/null +++ b/0291-cross-platform-pt2/ModernUIKit/SettingsFeature.swift @@ -0,0 +1,71 @@ +import Perception +import SwiftUI +import SwiftUINavigation + +@MainActor +@Perceptible +class SettingsModel: HashableObject { + var isOn = false +} + +struct SettingsView: View { + @Perception.Bindable var model: SettingsModel + + var body: some View { + WithPerceptionTracking { + Form { + Toggle(isOn: $model.isOn) { + Text("Is on?") + } + } + } + } +} + +class SettingsViewController: UIViewController { + let model: SettingsModel + + init(model: SettingsModel) { + self.model = model + super.init(nibName: nil, bundle: nil) + } + required init?(coder: NSCoder) { + fatalError("init(coder:) has not been implemented") + } + + override func viewDidLoad() { + super.viewDidLoad() + view.backgroundColor = .systemBackground + + let isOnSwitch = UISwitch() + isOnSwitch.addAction( + UIAction { [weak model = self.model, weak isOnSwitch] _ in + guard let model, let isOnSwitch + else { return } + model.isOn = isOnSwitch.isOn + }, + for: .valueChanged + ) + isOnSwitch.translatesAutoresizingMaskIntoConstraints = false + view.addSubview(isOnSwitch) + + NSLayoutConstraint.activate([ + isOnSwitch.centerXAnchor.constraint(equalTo: view.centerXAnchor), + isOnSwitch.centerYAnchor.constraint(equalTo: view.centerYAnchor), + ]) + + observe { [weak self] in + guard let self else { return } + isOnSwitch.setOn(model.isOn, animated: true) + } + } +} + +#Preview("SwiftUI") { + SettingsView(model: SettingsModel()) +} +#Preview("UIKit") { + UIViewControllerRepresenting { + SettingsViewController(model: SettingsModel()) + } +} diff --git a/0291-cross-platform-pt2/README.md b/0291-cross-platform-pt2/README.md new file mode 100644 index 00000000..d8d460c1 --- /dev/null +++ b/0291-cross-platform-pt2/README.md @@ -0,0 +1,5 @@ +## [Point-Free](https://www.pointfree.co) + +> #### This directory contains code from Point-Free Episode: [Cross-Platform Swift: WebAssembly](https://www.pointfree.co/episodes/ep291-cross-platform-swift-webassembly) +> +> We are going to take a Swift features _into the browser_. We will set up a WebAssembly application from scratch, show how to run and debug it, and even set up some basic UI before integrating our existing Observation-powered model into it. diff --git a/README.md b/README.md index 5817ed82..e4802ca4 100644 --- a/README.md +++ b/README.md @@ -291,3 +291,5 @@ This repository is the home of code written on episodes of [Point-Free](https:// 1. [Modern UIKit: Stack Navigation, Part 1](0287-modern-uikit-pt7) 1. [Modern UIKit: Stack Navigation, Part 2](0288-modern-uikit-pt8) 1. [Modern UIKit: UIControl Bindings](0289-modern-uikit-pt9) +1. [Cross-Platform Swift: View Paradigms](0290-cross-platform-pt1) +1. [Cross-Platform Swift: WebAssembly](0291-cross-platform-pt2)